2021001012122 has 8 divisors (see below), whose sum is σ = 3032452736256. Its totient is φ = 1010183433372.

The previous prime is 2021001012097. The next prime is 2021001012167. The reversal of 2021001012122 is 2212101001202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021001012097 and 2021001012106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158528378 + ... + 158541125.

It is an arithmetic number, because the mean of its divisors is an integer number (379056592032).

Almost surely, 2^{2021001012122} is an apocalyptic number.

2021001012122 is a deficient number, since it is larger than the sum of its proper divisors (1011451724134).

2021001012122 is a wasteful number, since it uses less digits than its factorization.

2021001012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317072692.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021001012122 its reverse (2212101001202), we get a palindrome (4233102013324).

The spelling of 2021001012122 in words is "two trillion, twenty-one billion, one million, twelve thousand, one hundred twenty-two".